ISA 828
Product Code: MOIF8281-UKDM
US$1,889.99
WAS: US$ 2,699.99
You can enjoy the benefits of Focusrite's classic heritage sound in many ways, but one of the most cost-effective is with the ISA 828, which includes eight Focusrite transformer-based mic preamps in a compact 2U package, along with front panel instrument ins and rear panel line inputs
You can enjoy the benefits of Focusrite's classic heritage sound in many ways, but one of the most cost-effective is with the ISA 828, which includes eight Focusrite transformer-based mic preamps in a compact 2U package, along with front panel instrument ins and rear panel line inputs
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Mic Inputs
Gain range | 0 dB to 60 dB in 10 dB steps |
Input Impedance | Variable, 600Ω, 1k4Ω, 2k4Ω, 6k8Ω |
EIN (equivalent input noise) | -126 dB measured at 60 dB of gain with 150 Ohm terminating impedance and 22 Hz / 22 kHz bandpass filter |
Noise at main output with gain at unity (0 dB) | -97 dBu measured with a 22 Hz / 22 kHz bandpass filter |
Signal to noise ratio relative to max headroom (9dBu) | 106 dB |
THD at medium gain (30dB) | 0.0008% measured with a 1 kHz -20 dBu input signal and with a 22 Hz / 22 kHz bandpass filter |
Frequency response at minimum gain (0 dB) | -0.5 dB down at 10 Hz and –3 dB down at 110kHz |
Frequency response at maximum gain (60 dB) | –3 dB down at 16 Hz and –3 dB down 85 kHz |
CMRR | 91.8 dB (Channel 1, 1 kHz, maxiumum gain) |
Crosstalk Channel to Channel | With 10 dB @ 1 kHz input to chA, chB output = 102 dBrA. With 10 dB @ 10 kHz input to chA, chB output = 84 dBrA |
Line Inputs
Gain range | -20 dB to +10 dB in 10 dB steps |
Input Impedance | 10 kΩ from 10 Hz to 200 kHz |
Noise at main output with gain at unity (0 dB) | -96 dBu measured with a 22 Hz / 22 kHz bandpass filter |
Signal to noise ratio relative to max headroom (24 dBu) | 120 dB |
Signal to noise ratio relative to 0dBFS(+22dBu) | 118dB |
THD at unity gain (0dB) | 0.001% measured with a 0 dBu input signal and with a 22 Hz / 22 kHz bandpass filter |
Frequency Response at unity gain (0dB) | 0.3 dB down at 10 Hz and –3 dB down at 122 kHz |
Instrument Inputs
Gain range | 10 dB to 40 dB continuously variable |
Input Impedance | 1 MΩ or 300 kΩ |
Noise at minimum gain (+10 dB) | -90 dBu measured with a 22 Hz / 22 kHz bandpass filter |
Noise at maximum gain (+40 dB) | -62 dBu measured with a 22 Hz / 22 kHz bandpass filter |
THD at minimum gain (+10 dB) | 0.002% measured with a 10 dBu input signal and with a 22 Hz / 22 kHz bandpass filter |
Frequency Response at 10 dB gain with -10 dB input | 10 Hz - 200 kHz +/- 0.6 dB |
Frequency Response at 40 dB gain with -40 dB input | -2.5 dB down at 10 Hz and 0 dB at 200 kHz |
Instrument Inputs
Roll off | 18 dB per octave 3 pole filter |
Frequency | Fixed 75Hz measured at the 3dB down point |
Weight and Dimensions
Weight | 8.84 kg | 19.5 lbs |
Dimensions (W x H x D) | 484mm (W) x 85mm (H) x 305mm (D) (350mm depth with heat sink) | 19" (W) x 3.5" (H) x 12" (D) (13.8" depth with heat sink) |
Attribute |
Description |
brand | focusrite |
Plug In Offer:
- Plug-in
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downloads every couple of months, along with generous discounts.
Included software – eStore:
Brainworx bx_console Focusrite – exclusive plug-in that faithfully captures the sound, feel and styling of the original Focusrite ISA 110 Equaliser and ISA 130 Dynamics Modules.
What is Refurbished/B Stock?
- Unit may have minimal signs of use/wear
- All accessories are included
- All included Software available upon registration
- 3 Year Warranty Included
- Packaging may show some signs of wear or the unit may have been repackaged in generic packaging
- To read more click here
ISA 828 incorporates eight of Focusrite's renowned mic pres in a simple-to-operate 2U enclosure, placing four mic preamps, instrument inputs and line ins at your fingertips. The original Focusrite mic pre was designed to suit the microphones of the time; today's model makes one small change, adding three additional input impedances to the classic ISA 110 setting, allowing you to match any microphone, old or new, and access a wide range of sounds, from the character and warmth of a vintage mic to the clear transparency of a modern design.
Each mic pre has the option of mic, line or the front-panel instrument input, with variable input impedance to ensure you are getting the best performance from the source. Up to 60dB of gain is available on the four-position rotary and gain range switches, with a further +20dB of continuously variable trim, meaning a huge 80dB of gain is available should it be required. The high-pass filter features variable cut-off frequency between 16 and 420Hz. An array of 6-segment LED meters show peak signal level for the four mic pres, in addition to the four direct inputs to the optional A-D card. Switchable rear-panel insert points allow the use of inline processors such as compression.
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